Lip-turning machine.



PATENTED APR. 24, 1906.

R. MITCHELL.

LIP TURNING MACHINE.

APPLIOATION FILED APB. 29. 1905.

2 SHEETS-SHEET' 1.

WIT/V LSSES. LA/RMM PATENTED APR. 24, 1906.

APPLICATION FILED APB..29. 1905.

2 SHEETS-SHEET 2.

INVENTOR.

WITNESSES.

ROBERT MITCHELL, OF DETROIT, MICHIGAN.`

LIP-TURNING MACHINE.

Specification. of Letters Patent.

Application filed pril 29, 1905. Serial N0. 258,017.

No. 818,774. Patented April 24, 1906.

T0 all wil/0m t may concern:

Be it known that I, ROBERT MITCHELL, a citizen of the United States ofAmerica, residing at Detroit, in the county of Wayne l and State ofMichigan, have invented certain new and useful Improvements inLip-Turning Machines, of which the following is a specification,reference being had therein to the accompanying drawings.

This invention relates to improvements in i that class ofshoeniaking-inachines known in l the art as lip-turners, and the objectof l the invention is to provide adequate means I for feeding theshoe-sole past the lip lifting, turning, and setting devices and firmlyholdr vement manner, as by a treadle, (not shown,) is provided to movethe block downward against the action of said spring and lower the frontend of the shaft, 'to which is secured to turn therewith a feed-wlieel11, provided with peripheral teeth to engage the under side of the solebeing operated upon and feed the same forward.

A tool-supporting block 12 is adjustably secured between the upper endsof the ways 4 and forms a seat for the plow or lip-raising tool 13,which is adjustably secured to its upper side and also forms a bearingfor a short shaft 14, extending rearwardly and upwardly at an angle tothe axis of the shaft 6 and connected at its rear end to a shaft 15,from which it receives motion by means of a universal joint 16, saidshaft 15 being mounted in a suitable bearing in the rear standard 2 ofthe frame. To the forward end of the short shaft 14 is secured a smallbevel-gear 17, which engages a similar gear 1S on the lower end of a pin19, mounted in a bearing in the block 12, and extend ing upward at rightangles to the axis of the shaft 14, said pin being provided at its upperend with a small feed-disk 20, secured thereto to turn therewith andprovided with teeth or a roughened lower peripheral surface to runwithin the channeled ortioii of sole to assist in feeding the saineforward.

ing the same during the operation of said devices and also to provide afeed-wheel and supporting-table suitable for use upon weltwork, wherethe stock is thin and flexible.

A further object of the invention is to provide a direct drive for thewiper-wheel to prevent slipping and to provide certain other new anduseful features, all as hereinafter more fully described, referencebeing had to the accompanying drawings, in which- Figure 1 is alongitudinal vertical section of a device embodying the invention; Fig.2, a front end elevation of the same with the gear-casing in section.Fig. 3 is a side elevation of a portion of the machine, showing the suporting-table and feed-wheel for weltwor i in lace. Fig. 4 is a frontelevation of The feed-disk 20 and feed-wheel 11 are so Fig. 3 5 ig. 5,an elevation of the side oppoarranged that the forward edge of said disksite to that shown in Fig. 3 and showing the supporting-table insection; Fig. 6, a section on the line .r of Fig. 3, and Fig. 7 a detailshowing a section through the axis of the upper feed-disk.

l is the base portion of the frame of the machine; 2, a verticalstandard or post at extends over and close to the peripheral teeth ofthe wheel, and when a sole is to be operated upon it is inserted betweenthe disk and wheel and is firmly clamped between by the action of thespring 9, which forces the bearing for the shaft upon which the wheel issecured upward. The disk is set at an angle to the rear end of the base,and 3 a similar the axis of the shaft 6 so that it will engage standardat the forward end thereof, provided the horizontal extending surface ofthe sole with vertical ways 4 for the bearing-block 5, at but one pointin its periphery, and on the in which the shaft 6 is ouinaled near oneend, rear end of shaft l5 is secured a pinion 21, in the opposite end ofsaid shaft being supengagement with a gear 22 on shaft 6, so that portedin a similar block 7, loosely held in an l the feed wheel and disk willbe tuined at the opening in the rear standard 2. The block 5 properrelative speeds to each feed the sole at is vertically movable on itsways to raise and the same rate of speed as the other.

lower the front end of said shaft, a stop- Adjustably secured to theupper end ofthe screw S, extending downward through a standard 3 is abracket 23, provided with a screw-threaded opening in the standard,bebearing in which is 'fixed a stationary shaft ing provided todeternine the height to 24, extending in a horizontal plane at rightwhich said block may be moved on its ways angles to the shaft 6, and onthis shaft is by a suitable coiled spring 9, engaging its looselymounted a belt-pulley 25 and a gearlower side. A rod 10, attached to thelower wheel 26, secured to said pulley to turn thereside of said blockand operated in any conwith. An outwardly-extending arin. 27 on IOO IOS

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the bracket below the bearing for the fixed shaft is formed with abearing for a second fixed shaft 28, upon which is loosely mounted agear 29, in mesh with the gear 26 and the wiper-wheel 30, secured tosaid gear 29 to turn therewith, the wiper-wheel extending at rightangles to the path of the lip on the sole to be turned and provided withperipheral teeth to engage said lip. The lower edge of the wiper-wheelrevolves close to one side of the plow 13 and as close to the uppersurface of the feed-disk as possible, and adjustably secured to thetool-carrying block, by means of screws extending through slottedopenings, is a presser-foot 31, extending close to the side of at whichthe plow lies, and is provided with a finger 32, extending across theforward edge of the wheel, so that in turning the lip at the toe of avery pointed sole the foot will not run out of engagement with the lip.As

shown in Fig. 7, the lower sides of the plow and presser-foot arerecessed to receive the feed-disk, thus bringing the point of contact ofthe disk, plow, wiper-wheel, and presserfoot with the lip close togetherand greatly aiding in the operation of the machine.

- Integral with the pulley 25 is a pulley 33 for the round belt or cable34, which passes over the idlers 35 and 36, journaled on an adjustablebracket on the standard 2 of the frame, and thence around a pulley 37,journaled upon a stud-bolt 38 on the said standard to transmit motionfrom the main driving-pulley 25 to the shaft 6, through a pinion 39,attached to the pulley 37 and in mesh with a gear 40 on the rear end ofsaid shaft 6. The pulley 37 is provided with three contact-faces ofdifferent diameters, so that the speed ofthe feed disk and wheel may bevaried by shifting the cable from one to another of said faces. Bygearing the wiper-wheel directly to the main driving-pulley, which isdriven by a wide belt, the continual rotation of the said wheel isinsured, and as the parts are geared to transmit motion from a smallpinion to a large gear proper driving power is obtained, the arrangementof driving mechanism thus insuring the uninterrupted operation of allparts regardless of the strain put upon them.

The feed-wheel 11 (shown in Figs. 1 and 2) is provided with peripheralteeth for engaging and feeding the sole forward; but such a wheel may beused only upon McKay or similar work,where the marking or roug ening ofthe under surface of the sole well do no harm. Upon welt or similarwork, where the sole is comparatively thin and it is desirable to have aperfectly smooth under surface on account of being worn next to thefoot, a feed-wheel 41 .(shown in Figs. 3, 4, and 5) is provided, whichhas a milled or otherwise slightly roughened surface and which may besecured to the end of the shaft the wiper-wheel opposite that 6 in thesame manner as the wheel 11. In

McKay workthe soles are quite thick, and

therefore the teeth upon the feed-wheel are more necessary to insure thefeeding forward of the sole, and no support other than the wheel isrequired, as the sole is quite stiff and the tools work close togetheradjacent to the point at which the wheel engages the sole but inwelt-work the soles are thin and iiexible, thus necessitating means forsupporting the sole in a horizontal position as it passes between thefeed wheel and disk. To so support the work, 3, 4, and 5) is secured tothe outer end of the bearing-block 5 by screws passing through openingsin the side flanges of said table, with the upper edge of the feed-wheelslightly projecting through an opening in the top of the table. Saidtable is thus supported in a fixed relation to the feed-wheel and moveswith it as the same is lowered to insert the sole between it and thelip-raising tool or plow.

On welt-work the machine is used on the insole only. Thus if theinsoleis marred by means of the pointed feed-wheel 11 the shoe when finishedwould be unwearable. Hence the reason of a broad under-feed withslightlyroughened surface. On McKay work the outsole is operated upon.The part of sole on which feed-wheel 11 is in contact is cemented to theinsole on the finished shoe, thus any marring of the sole does notinjure or cause any distress to the wearer.

Having thus fully described my invention,

what I claim is- 1. In a lip-turning machine, in combination' with meansfor raising and turning the lip, of a horizontally-extending shaftadapted to be moved vertically at one end, a feedwheel secured upon thevertically-movable end of the shaft, a feed-disk supported adjacent tothe feed-wheel with one edge extending over the peripheralvcontact-surface of the wheel, a spring to raise the movable end of theshaft and clamp the work between the feed wheel and disk, and means forturning the disk and wheel at such relative speeds that the Work willbe'fed by each at the same speed. I

2. In a lip-turning machine, in combination with means for raisingthelip, of a feedwheel adapted to engage the .under side of thehorizontally-extending work, a feed-disk having a contact-face at theperiphery of its lower side and journaled to revolve with said face in aplane extending at an inclination to the horizontal plane of the uppersurface of the work, means for turning the disk and wheel at relativespeeds, and a wiper-wheel revolving in a vertical plane above the pointof contact of the disk with the work and at right angles to the path ofthe lip to engage and turn the same.

3. In a lip-turning machine, the combination with a vertically-movablefeed-wheel a table 42`(shown in Figs.v

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adapted to engage the lower side of the work, a wiper-wheel to engagethe lip in a vertical plane above the contact-point of the feedwheelwith the work and revolving in a plane at right angles to the path ofthe lip, and a plow at one side of the wiper-wheel to raise the lip of afeed-disk journaled to be revolved with its lower face in contact withthe upper side of the work in the vertical plane of the point of contactof the feed-wheel with the work and the wiper-wheel with the lip andmeans for revolving said disk.

4. In a lip-turning machine, the combination with a feed-wheel adaptedto engage the lower side of the work, a wiper-wheel revolved in a planeat right angles to the lip and adapted to engage the same and a plowadjacent to one side of the wiper-wheel to raise the lip of apresser-foot adjacent to the opposite side of the wiper-wheel, and afinger on said foot extending across the forward side of thewiper-wheel.

5. In a lip-turning machine, the combination with a verticafly-movablefeed-wheel to eng-age the lower side of the work, of a wiperwheelrevolving in a vertical plane at right angles to the path of the lip toengage and turn the same, a plow supported at one side of thewiper-wheel and having a recess in its lower side, a presser-footsupported at the opposite side of the wiper-wheel and having a recess inits lower side, a feed-disk journaled within the recesses of the plowand presser-foot to revolve in a horizontally-extending plane with itsforward edge between the wiper-wheel and feed-wheel to engage the uppersurface of the work, and means forrevolving said disk.

6. In a lip-turning machine, the combination with a supporting-frame, ahorizontallyextending shaft mounted in bearings on said frame andadapted to be moved verticallyT at one end, and a feed-wheel on theverticallymovable end of said shaft of a short shaft mounted in abearing on the frame and extending rearwardly and upwardly at aninclination to the axis of the horizontally-extending shaft, ahorizontal shaft mounted on the frame, a universal joint connecting thelast-named shaft with the short shaft, a pinion on the said last-namedshaft, a gear on the horizontallyextending' shaft in mesh with the saidpinion, a bevel-gear on the forward end of the inclined short shaft, arevoluble pin mounted in a bearing and extending at right angles to thesaid short shaft, a bevel-gear on the lower end of the pin in engagementwith the other gear, a feed-disk on the upper end of said pin with itsedge extending over the feed-wheel in contact with the upper side of thework, a wiper-wheel above the disk revoluble in a vertical plane atright angles to the path of the lip to be turned thereby, a plowsupported at one side of the wiper-wheel over the disk and a presser--the adjacent ends of said short shaft and foot supported at theopposite side ofthe wiper-wheel above the disk.

7. In a lip-turning machine, the combination with lip raising andturning means, of a feed-wheel revolublc in a vertical plane,vertically-movable means for supporting the wheel, and a work-supportingtable supported by and movable with said supporting means.

8. In a lip-turning machine, the combination with lip raising andturning means, of a horizontally-extending shaft, a verticallymovablebearing for said shaft, a feed-wheel secured to the end of said shaft torevolve in a vertical plane beneath the lip raising and turning means, awork-supporting table having an opening in its top through which theupper contact edge ofthe wheel projects, and side flanges on the tablesecured to the said vertically-eleva ble bearing for the shaft.

9. In a lip-turning machine, the combination with the supporting-frame,of a vertically-movable feed-wheel supported on the frame and adapted toengage the lower side of the work, a plow adjustably secured to theframe above said wheel, a presser-foot secured to the frame at a shortdistance from said plow, a fixed shaft mounted in al bearing on theframe, a pulley loosely mounted on said shaft, a gear on the shaft toturn with the ulley, a second fixed shaft mounted in a earing on theframe and extending parallel with the first shaft, a gear on thelast-named shaft in mesh with the other gear, a wiperwheel on thelast-named shaft to turn with the gear on said shaft and revolving in avertical plane between the plow and presser-foot at right angles to thepath of the lip to be turned, and means for transmitting motion fromsaid pulley to turn the feed-wheel.

10. In a lip-turning machine, the combination with the supporting-'framehaving vertical standards at each end, of a vertical guideway on theforward standard of the frame, a bearing-block movable in said way, abearingblock loosely mounted in an opening in the rearstandard, a shaftournaled in said blocks, a feed-wheel secured to the forward end of saidshaftand revolving in a vertical plane, a supportingblock secured to the`forward standard and provided with bearings a short shaft in one ofsaid bearings, a pin in the other bearing on the block and extending atright angles to the short shaft, bevel-gears on pin, a feed-disk on theupper end of said pin with its edge extending over the feed-wheel toengage the upper surface of the work, a shaft mounted in a bearing onthe rear standard, a universal joint connecting said shaft with theshort shaft, a pinion on the rear end of said last-named shaft, a gearengaging said pinion and secured to the shaft upon which the feedwheelis mounted, a bracket adjustably secured to the forward standard andprovided IOO with parallel bearings, fixed shafts in said bearings,pulleys on one of said fixed shafts free to turn thereon, a gear securedto one of said pulleys, a gear on the other shaft engaging said gear, aWiper-Wheel secured to the lastnamed gear andrevolving in a verticalplane with its lower s] de adjacent to and vertioally above thefeed-disk, a ploW at one side of the Wiper-Wheel adj ustably secured tothe supporting-block and provided With a recess for the feed-Wheel, apresser-foot adj ustably secured to the supporting-block at the opposite side ofthe Wiper-Wheel and provided With arecess i' or thefeed-disk, a largepulley mountthe idlers into engagement with the largeed on the frame, gears for transmitting mo'- 15' tion from said pulleyto the shaft upon which the feedeWheel is mounted, idlers journaled onthe frame, and a cable engaging one of the pulleys on the fixed shaftand passing over pulley.

In testimony whereof I afl-lx my signature in presence of two Witnesses.

ROBERT MITCHELL.

Witnesses:

THos. G. LoNGsTAFF, OTTO F. BARTHEL.

